Originally posted by: SystemAdmin

[topbull said:]

Is it possible to initialize a multidimensional array separately? For example, if define an array a[1..2][1..2], can I initialize this array like
a[1] = [1 2]
a[2] = [3 4]
?
#DecisionOptimization
#OPLusingCPLEXOptimizer

Originally posted by: SystemAdmin

[Didier Vidal said:]

You have all the flexibility you want if you do the initialization with javascript statements, as in the following example


int a[1..2][1..2];

execute {
  a[1][1] = 1;
  a[1][2] = 2;
  a[2][1] = 3;
  a[2][2] = 4;
}



However, the constraint in this case is that the second dimension has the same indexer in all cases (your array must really be a matrix).

If you want to model structures that are more complex than a matrix, the best way is to use tuplesets.  On the whitepaper page of OPL ([url=http://www.ilog.com/products/oplstudio/whitepapers/index.cfm]http://www.ilog.com/products/oplstudio/whitepapers/index.cfm[/url] ) you have an interesting whitepaper called  "Efficient Modeling in ILOG OPL-CPLEX Development System" that details the use of tuplesets.

Didier Vidal
#DecisionOptimization
#OPLusingCPLEXOptimizer